1 Sterling Power charge controller ranked. Each one is scored and ranked against every brand in its type, so "#3 mid-size" means third of all mid-size charge controllers here, not third among Sterling Power's own.
The Sterling Pro Batt Ultra BB1260 is Sterling Power's only current charge controller here, ranked #7 of 12 DC-DC and rated 3.5.
For boats and big RV banks that need lots of alternator current and fine control over charge voltages. Van builders short on space will find the Orion XS smaller and easier.
Amazon $318.75Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
For boats and big RV banks that need lots of alternator current and fine control over charge voltages. Van builders short on space will find the Orion XS smaller and easier.
Amazon $318.75